Update change log and spec for wrt-plugins-tizen_0.2.75

Update change log and spec for wrt-plugins-tizen_0.2.75

Changed Modules : Download, Messaging, Systeminfo and Contact

[Version] 0.2.75
[Project] GT-I8800, Public
[Title] SEL Verification
[Team] WebAPI
[BinType] PDA
[Customer] Open

[Issue#] N/A
[Problem] Messaging - crash when mms sending fails
[Cause] mms sending fail bug
[Solution] mms sending fail bug fix

[Issue#] N_SE-4523
[Problem] Systeminfo - device property value is not correct
[Cause] codes are wrong
[Solution] change code about get property value

[Issue] N/A
[Problem] Messaging - mms sending fails
[Cause] mms sending fail bug
[Solution] mms sending fail bug fix

[Issue] N/A
[Problem] Messaging - add Address type on sms for consistency
[Cause] add Address type on sms for consistency
[Solution] add Address type on sms for consistency

[Issue#] N/A
[Problem] Contact - Some field show wrong values
[Cause] Field matching rules are wrongly defined
[Solution] Fixed matching codes

[SCMRequest] N/A